CN218267076U

CN218267076U - Ball screw pre-tightening structure

Info

Publication number: CN218267076U
Application number: CN202222692211.9U
Authority: CN
Inventors: 何晓东
Original assignee: Zhejiang Pulio Intelligent Transmission Technology Co ltd
Current assignee: Zhejiang Pulio Intelligent Transmission Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-01-10
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a ball screw pretension structure relates to ball screw pretension structure technical field, including sliding plate and cover shell, the inside slidable mounting of one end of cover shell has the sliding plate, the equal fixed mounting in roof top surface two places of sliding plate top surface two places and cover shell has the support, four install two slewing mechanism between the support, all install two fixture on two slewing mechanism, the bottom surface fixed mounting of sliding plate has two anti-skidding seats. A ball screw pretension structure, drive first lead screw and second lead screw through holding screw and rotate for two fixture are close to each other or keep away from, realize two main splint and grasp the ball screw bottom, ball screw places on the lower plate, "Contraband" shaped plate grasps ball screw with the lower plate cooperation under the effort of spring, can adapt to the ball screw of different width length and thickness, the pretension is effectual, the centre gripping is stable, easy operation.

Description

Ball screw pre-tightening structure

Technical Field

The utility model relates to a ball screw pretension technical field, in particular to ball screw pretension structure.

Background

The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion. The ball screw is the most commonly used transmission element on tool machinery and precision machinery, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipments and precision instruments due to their small frictional resistance. The traditional ball screw consists of a screw, a nut, a steel ball, a preforming piece, a reverser and a dust remover.

The prior patent (publication number: CN 211804872U) discloses a ball screw pre-tightening structure, and relates to the technical field of ball screws. The base is included, first assembly plate, second assembly plate have been welded respectively to outer wall opposite face one side of base, the equal welding of upper surface both sides department of first assembly plate, second assembly plate has quick-witted board, and threaded connection has first fastening screw, second fastening screw respectively on the quick-witted board simultaneously, the spout has all been seted up on first assembly plate, the second assembly plate, and there are first sliding seat, the second sliding seat in inside both sides of spout respectively through slider slidable mounting simultaneously, the port shape is semi-cylindrical when first sliding seat, the second sliding seat merge, and first fastening screw, second fastening screw all rotate with first sliding seat, second sliding seat through the bearing simultaneously and are connected. The inventor finds that the following problems in the prior art are not solved well in the process of realizing the scheme: when the device is used for early warning of the ball screw base, tools are needed to rotate the four fastening screws, so that the operation is very inconvenient; the device centre gripping is not stable enough, and fixed effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a ball screw pretension structure can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a ball screw pretension structure, includes sliding plate and cover shell, the inside slidable mounting of one end of cover shell has the sliding plate, equal fixed mounting has the support, four in two places of sliding plate top surface and two places of roof top surface of cover shell install two slewing mechanism between the support, all install two fixture on two slewing mechanism, the bottom surface fixed mounting of sliding plate has two anti-skidding seats.

Preferably, the rotating mechanism comprises a sliding column, a first screw rod and a second screw rod, one ends of the first screw rod and the second screw rod which are adjacent to each other are fixedly connected, one ends of the first screw rod and the second screw rod which are far away from each other are respectively rotatably installed in the corresponding supports, the sliding column is fixedly installed between the two supports and is located at the bottom of the first screw rod and the bottom of the second screw rod, and the thread directions of the first screw rod and the second screw rod are opposite.

Preferably, fixture includes movable block, main plate, slipmat, "Contraband" shaped plate and spring, the movable block slides and runs through to be installed on the traveller, the screw thread of movable block runs through to be installed on first lead screw or second lead screw, the top fixed mounting of movable block has the main plate, the slide rail is all installed on the both sides surface of main plate, two slidable mounting has "Contraband" shaped plate on the slide rail, one side fixed surface of slipmat installs a plurality of slipmat.

Preferably, the bottom of one side surface of the main clamping plate is fixedly provided with a lower clamping plate, the bottoms of the two side surfaces of the main clamping plate are fixedly provided with lower fixing plates, and springs are fixedly arranged between the Contraband shaped plate and the two lower fixing plates.

Preferably, one end of each of the two first screw rods penetrates through the support and is fixedly provided with a clamping screw, and a plurality of mounting holes are formed in the bottom plate of the casing.

Preferably, the surfaces of the two sides of the sliding plate are respectively provided with a plurality of screw holes, and the positions of the two side plates of the casing, which are close to the sliding plate, are both provided with fastening screws in a threaded penetrating manner.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through setting up the traveller restriction movable block and removing the position, set up first lead screw and second lead screw that the screw direction is opposite and can make first lead screw and second lead screw when rotating, install two movable blocks on first lead screw and second lead screw and be close to or keep away from, conveniently pretension ball screw easy operation.

2. Drive first lead screw and second lead screw through holding screw and rotate for two fixture are close to each other or keep away from, realize that two main splint grasp ball screw bottom, and ball screw places on the lower plate, "Contraband" shaped plate and lower plate cooperation are held ball screw under the effort of spring, can adapt to the ball screw of different width length and thickness, and the pretension is effectual, and the centre gripping is stable.

Drawings

Fig. 1 is a schematic view of the whole structure of a ball screw pre-tightening structure of the present invention;

fig. 2 is a schematic view of a top view structure of the ball screw pre-tightening structure of the present invention;

fig. 3 is a schematic view of an elevational structure of a ball screw pre-tightening structure of the present invention;

fig. 4 is the utility model relates to a ball screw pretension structure fixture's spatial structure sketch map.

In the figure: 1. a sliding plate; 2. a housing; 3. a screw hole; 4. fastening screws; 5. a support; 6. a clamping mechanism; 61. a movable block; 62. a main clamping plate; 63. a non-slip mat; 64. a "Contraband" shaped plate; 65. a spring; 66. a lower fixing plate; 67. a lower splint; 68. a slide rail; 7. a first lead screw; 8. clamping the screw; 9. a traveler; 10. a second lead screw; 11. mounting holes; 12. and (4) an anti-slip seat.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 4, a ball screw pre-tightening structure comprises a sliding plate 1 and a casing 2, wherein the sliding plate 1 is slidably mounted in one end of the casing 2, two supports 5 are fixedly mounted on two positions of the top surface of the sliding plate 1 and two positions of the top surface of a top plate of the casing 2, two rotating mechanisms are mounted between the four supports 5, two clamping mechanisms 6 are mounted on the two rotating mechanisms, and two anti-slip seats 12 are fixedly mounted on the bottom surface of the sliding plate 1.

In this embodiment, the rotating mechanism includes a sliding column 9, a first lead screw 7 and a second lead screw 10, one end of the first lead screw 7 adjacent to one end of the second lead screw 10 is fixedly connected, one end of the first lead screw 7 remote from the second lead screw 10 is rotatably installed in the corresponding support 5, the sliding column 9 is fixedly installed between the two supports 5, the sliding column 9 is located at the bottom of the first lead screw 7 and the bottom of the second lead screw 10, and the thread directions of the first lead screw 7 and the second lead screw 10 are opposite.

Specifically, the sliding columns 9 are arranged to limit the moving direction of the movable blocks 61, and the first screw rod 7 and the second screw rod 10 with opposite thread directions are arranged, so that when the first screw rod 7 and the second screw rod 10 rotate, the two movable blocks 61 arranged on the first screw rod 7 and the second screw rod 10 are close to or far away from each other.

In this embodiment, the clamping mechanism 6 includes a movable block 61, a main plate 62, anti-slip pads 63, a Contraband "shaped plate 64 and a spring 65, the movable block 61 is slidably installed on the sliding column 9, threads of the movable block 61 are installed on the first screw rod 7 or the second screw rod 10 in a penetrating manner, the main plate 62 is fixedly installed at the top end of the movable block 61, slide rails 68 are installed on both side surfaces of the main plate 62, contraband" shaped plates 64 are slidably installed on the two slide rails 68, and a plurality of anti-slip pads 63 are fixedly installed on one side surface of the anti-slip pads 63; the bottom of one side surface of the main plate 62 is fixedly provided with a lower plate 67, the bottoms of two side surfaces of the main plate 62 are fixedly provided with lower fixing plates 66, and springs 65 are fixedly arranged between the Contraband' shaped plate 64 and the two lower fixing plates 66.

Concretely, drive first lead screw 7 and second lead screw 10 through holding screw 8 and rotate, make two fixture 6 be close to each other or keep away from, realize that two main splint 62 grip the ball screw bottom, ball screw places on lower plate 67, under spring 65's effort "Contraband" shaped plate 64 and lower plate 67 cooperation grip ball screw, can adapt to the ball screw of different width length and thickness, the pretension is effectual, the centre gripping is stable, the operation is adjusted comparatively simply.

In the embodiment, one end of each of the two first screw rods 7 is fixedly provided with a clamping screw 8 through the support 5, and a bottom plate of the casing 2 is provided with a plurality of mounting holes 11; a plurality of screw holes 3 are formed in the surfaces of two sides of the sliding plate 1, and fastening screws 4 are installed on the positions, close to the sliding plate 1, of the two side plates of the shell 2 in a penetrating mode through threads.

Specifically, the casing 2 is fixed by an external screw through the installation hole 11, and the fastening screw 4 and the screw hole 3 are used for fixing the sliding plate 1 and the casing 2.

The working principle is as follows: the length of sliding plate 1 and cover 2 has been adjusted according to the length of ball screw, it can not remove to rotate fastening screw 4 fixed sliding plate 1, use the instrument to rotate two holding screw 8 respectively according to the width of ball screw base, drive first lead screw 7 and second lead screw 10 along with holding screw 8 and rotate, make two fixture 6 be close to each other or keep away from, realize that two main splint 62 grip the ball screw bottom, ball screw places on lower plate 67, under the effort of spring 65 "Contraband" shaped plate 64 and lower plate 67 cooperation grip ball screw, can adapt to the ball screw of different width length and thickness, the pretension is effectual, the centre gripping is stable, the operation and adjustment is comparatively simple.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a ball screw pretension structure, includes sliding plate (1) and cover shell (2), its characterized in that: the anti-skidding type anti-skidding frame is characterized in that a sliding plate (1) is slidably mounted inside one end of the casing (2), two supports (5) are fixedly mounted on two positions of the top surface of the sliding plate (1) and two positions of the top surface of a top plate of the casing (2), four rotating mechanisms are mounted between the supports (5), two clamping mechanisms (6) are mounted on the two rotating mechanisms, and two anti-skidding seats (12) are fixedly mounted on the bottom surface of the sliding plate (1).

2. The ball screw preloading structure as recited in claim 1, wherein: the rotating mechanism comprises a sliding column (9), a first screw rod (7) and a second screw rod (10), one ends of the first screw rod (7) and the second screw rod (10) are fixedly connected, one ends of the first screw rod (7) and the second screw rod (10) which are far away from are respectively rotatably installed in corresponding supports (5), the sliding column (9) is fixedly installed between the two supports (5), the sliding column (9) is located at the bottom of the first screw rod (7) and the bottom of the second screw rod (10), and the thread directions of the first screw rod (7) and the second screw rod (10) are opposite.

3. The ball screw preloading structure as recited in claim 2, wherein: fixture (6) are including movable block (61), main plate (62), slipmat (63), "Contraband" shaped plate (64) and spring (65), movable block (61) slides and runs through and installs on traveller (9), the screw thread of movable block (61) runs through and installs on first lead screw (7) or second lead screw (10), the top fixed mounting of movable block (61) has main plate (62), slide rail (68) are all installed on the both sides surface of main plate (62), two slidable mounting has "Contraband" shaped plate (64) on slide rail (68), one side fixed surface of slipmat (63) installs a plurality of slipmat (63).

4. The ball screw pre-tightening structure according to claim 3, wherein: one side surface bottom fixed mounting of main plate (62) has lower plate (67), the equal fixed mounting in both sides surface bottom of main plate (62) has lower plate (66), equal fixed mounting has spring (65) between "Contraband" shaped plate (64) and two lower plate (66).

5. The ball screw pre-tightening structure according to claim 2, characterized in that: two the one end of first lead screw (7) runs through support (5) fixed mounting has clamping screw (8), a plurality of mounting hole (11) have been seted up to the bottom plate of cover shell (2).

6. The ball screw preloading structure as recited in claim 1, wherein: the two side surfaces of the sliding plate (1) are respectively provided with a plurality of screw holes (3), and the two side plates of the casing (2) close to the sliding plate (1) are respectively provided with a fastening screw (4) in a threaded penetrating way.